Gas tip and process for producing carbon black



Dec. 20, 192 7.

C. A. BARBOUR. JR

GAS UP AND PROCESS FOR PRODUCING CARBON BLACK Filed Oct. 1, 1926 POINT of el mus "av.

Patented Dec. 20, 1927.

cLYnn A- HARBOUR, JR, or MONROE, LOUISIANA. i

GAS TIP AND; PROCESS FOR PRODUCING CARBON BLACK.

-App1ication fi1ed October 1, 1926. Serial No. 139,010.

The present invention relates to the production of carbon black from natural and other gases and has for. its object the pro- 'duction of a tip or jet whereby the gas can be burned in a more economical. manner with the productienot a very much higher quantity of carbon-from a given quantity of gas than can be produced by burners now known in the art. A further object of w my invention resides in a new and improved process of burning the gases referred to for the production of carbon black wherein the tip or jet hereindescribed is used.

In accordance with the present invention,

5 a thin fiat stream of gas capable of yielding carbon black on partial combustion is established. This stream of gas is then ignited and faced on both sides by a stream of atmospheric air or other gas promoting partial to combustion. A definite Zone of combustion or partial combustion will be established between the two streams and the usual carbon collecting plate or channel iron is positioned near or above this zone. The carbon may be removed from the plate or channel iron in a suitable and known manner.

Referring now to the drawings accompanying this description and forming part thereof, and in which corresponding parts K it,

are designated by the same reference nu merals Figure 1 shows a side elevation view of the tip or jet on an enlarged scale;

Figure 2 shows a similar view, part of which is shown in longitudinal section;

Figure 3 shows a plan View of the tip or jet shown in Figures 1 and 2;

Figure 4 shows a modification of the invention in side elevation, part of which is shown in section;

Figure 5 shows a plan view of the modification shown in Figure 4.

The tip or jet comprises a neck 1, preferably tapered slightly to permit of a tight frictional fitting of the same within the pipe 1, having a bore 2 which leads tothe chamber 3. This chamber 3 is provided at its upper end with an opening at in the form of a narrow slot across the whole top of the burner. The chamber 8 is separated from each of the two air passages 5 by means of the walls 6 and the outer parts ot the passages or channels 5 are bounded bv the walls 7. Th passages 5 begin near the neck 1 of the tip or jet and extend to the top thereof, ending in slotted openings 8. Therela: tionship of thetwo air channels to the re- .maining parts of the tip will readily be understood upon an inspection of the drawings.

Above the gas tip is placed the carbon col lecting plate or channel iron 11 for collecting the carbon. The position of the plate 11 relative to the tip may be adjusted either by'raising or lowering the plate or channel iron or by raising or lowering the tip. By such adjustment the plate 11 may very easily be positioned by trial at the point for maximum carbon collection.

The modification shown in Figs. 4 and v5 is similar in all respects with the modification above described except for the provision'of a series of small openings 10 which form air passages on both sides of the gas slot. I

The tip is made of any suitable material capable of resisting the heat, for example, steatite, ceramic material, or heat resistant metal. The tip constructed in accordance with the present invention is about twice the size of the ordinary tip used in producing carbon black from natural gas and measures about one-halt of an inch at its widest part at right angles to the direction of flow of the gas. The height of the tip measuring from the base of the passage 5is about three-sixteenths of an inch. The size of the passages may be proportioned to correspond in the proportions shown in the drawing; or the gas and air passages may be respectively about one-thirty-second and onesix'tee'nth of an inch.

Having described my invention its operation is as follows: The gas from which the carbon black is to be produced enters the bore 2 and proceeds into the chamber 3 to the opening 4 from which it emerges in a stream many times as wide as the length of the slot 4- Upon ignition ot' the gas, air is sucked or aspirated through the two passages 5 by the flow otthe gas and faces the gas. The air does not mix with the gas but .will be present at the point of combustion in suthcient amount to support combustion or" v the gas to any extent desired, as the amount of air and gas can-be regulated by changing or varying the size of the air or gas orifices. The'relative position assumed by the streams of and air are approximately shown in Fig. 2 by means of legends and dotted lines.

It will be noted that the air simply makes an enveloping, body on each side of the gas. The collecting plate 11 for the carbon is placed at or near the point of combustion of the gas and air as shown clearly. in Figs. 1 and 2.

Having described my invention What I claim is:

1. A gas tip or jet-with a head having a slot therein for spreading gas as it issues gthei'e'tii'oui into a flat mass, means for conducting gas to said slot, said head also having air channels therein which are not in communication with said gas conducting means, said air channels having their 'outlet-s positioned on both sides of and near said slot and extending substantially the whole length of said slot.

2. A gas tip or jet with a head having a slot therein for spreading gas as it issues therefrom into a flat mass, means for'conducting gas to said slot, said head also having channels therein which are not in communication with said gas conducting means, said air channels terminating in slots in said head positioned on both sides of and near said first mentioned slot,'said last mentioned slots being substantially of the same length as said first mentioned slot.

In Witness whereof I have hereunto set my hand. r

' CLYDE A. BARBOUR, JR. 

